Water, pH and Macromolecules The lone pair electrons on oxygen in a H20 molecule carry a partial positive charge are not important for the properties of water form covalent bonds in ice carry a partial negative charge carry a partial positive charge are not important for the properties of water form covalent bonds in ice carry a partial negative charge ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The elements oxygen, nitrogen, and carbon contain protons and neutrons in their atomic nuclei can all form covalent bonds with other elements All of these are common elements in the molecules that make up living organisms contain protons and neutrons in their atomic nuclei can all form covalent bonds with other elements All of these are common elements in the molecules that make up living organisms ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Polyprotic acids such as H3PO4, can act as acid-base buffers at pH values around any of their pKa's at pH values around neutrality if their concentration is kept low only in combination with polyprotic bases at pH values around any of their pKa's at pH values around neutrality if their concentration is kept low only in combination with polyprotic bases ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The strength of an acid depends on electronegativity number of neutrons gain number of double bonds number of protons released electronegativity number of neutrons gain number of double bonds number of protons released ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The reason that fats contain more energy than simple sugars, is fats have many more covalent bonds carbon atoms hydrogen bonds hydrogen atoms covalent bonds carbon atoms hydrogen bonds hydrogen atoms ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Weak acids generally have pKa pKa values greater than 2 values less than 1 been seldom found in living systems that cannot be used to buffer pKa values greater than 2 values less than 1 been seldom found in living systems that cannot be used to buffer ANSWER DOWNLOAD EXAMIANS APP